Shredding device for double-shaft shredder

Abstract

The utility model discloses a shredding device for a double-shaft shredding machine, which relates to the technical field of double-shaft shredding machines and comprises a frame and a shredding box, the shredding box is welded above the frame, a feed hopper is welded above the shredding box, and a shifting mechanism is arranged in the middle of the feed hopper; the material stirring mechanism comprises a gear motor connected to one side of the feeding hopper through a bolt, and a rotating shaft is rotationally connected to the output end of the gear motor and located in the feeding hopper. According to the shredding device for the double-shaft shredding machine, five sets of material stirring plates are additionally designed in the middle of the feeding hopper, the speed reduction motor drives the five sets of material stirring plates to rotate, fed materials can be effectively dispersed, the materials can evenly enter the shredding box in the shredding process, and the shredding efficiency is improved. The situation that materials are accumulated or blocked when the materials are too many and cannot be discharged in time is avoided, so that the shredding process can be smoothly carried out, the shredding efficiency is improved, and parts in the shredding machine can be prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of dual-shaft shredder technology, specifically a shredding device for a dual-shaft shredder. Background Technology

[0002] A dual-shaft shredder, also known as a shear shredder, reduces material size through shearing, tearing, and compressing actions. This type of shredder is mainly used for crushing and recycling plastics such as packing straps, tires, films, woven bags, and waste fishing nets. With independent dual-shaft drive, a unique cutter shaft structure, and four-corner rotating blades, it avoids shaft entanglement or equipment jamming during low-speed, high-torque production, thus improving production efficiency.

[0003] However, existing dual-shaft shredders still have certain problems during the material feeding process:

[0004] An existing example is a dual-shaft shredder with application number CN201020572037.9, which includes a shredder base, a cutting box disposed in the base, and a moving blade disposed in the cutting box. The cutting box is provided with a filter screen frame, which is disposed below the moving blade. The distance between the filter screen frame and the moving blade corresponds to the size of the hole on the filter screen frame.

[0005] However, in the above-mentioned technology, during the shredding process, the twin-shaft shredder achieves the shredding effect through the meshing of two sets of shredding rollers. During this process, the material will slowly pass between the two sets of shredding rollers. When there is too much material, it will cause accumulation, which will not only affect the shredding of the material, but also cause the shredding rollers to jam and be damaged, thereby affecting the normal use of the shredder and shortening its service life.

[0006] Therefore, we propose a shredding device for a dual-shaft shredder to address the problems mentioned above. Utility Model Content

[0007] The purpose of this utility model is to provide a shredding device for a twin-shaft shredder, in order to solve the problem mentioned in the background art that, during the shredding process of materials, since the twin-shaft shredder achieves the shredding effect through the meshing of two sets of shredding rollers, the material will slowly pass between the two sets of shredding rollers. When there is too much material, it will cause accumulation, which not only affects the shredding of the material, but also causes the shredding rollers to jam and be damaged, thereby affecting the normal use of the shredder and shortening the service life of the shredder.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a shredding device for a dual-shaft shredder, comprising a frame and a shredding box:

[0009] A shredding box is welded to the top of the frame, a feeding hopper is welded to the top of the shredding box, and a feeding mechanism is provided in the middle of the feeding hopper;

[0010] The feeding mechanism includes a geared motor bolted to one side of the feed hopper. The output end of the geared motor and the inside of the feed hopper are rotatably connected to a rotating shaft. A feeding plate is fixed on the outer surface of the rotating shaft, and five sets of feeding plates are evenly distributed along the outer surface of the rotating shaft. A third bearing seat is bolted to the other side of the feed hopper, and the other end of the rotating shaft is rotatably connected to the third bearing seat.

[0011] By adopting the above technical solution, by adding a rotatable and adjustable material-dispersing plate in the middle of the feeding hopper, the material can be effectively dispersed by rotation during the feeding process, avoiding material accumulation or blockage and ensuring the smooth progress of the shredding process.

[0012] Preferably, a first drive motor is bolted to one side of the shredding box, and a first shredding roller is rotatably connected to the output end of the first drive motor and located inside the shredding box. A first bearing seat is bolted to one side of the shredding box, and the other end of the first shredding roller is rotatably connected to the first bearing seat.

[0013] By adopting the above technical solution, the first shredding roller is driven to rotate by the first drive motor, and the other end of the first shredding roller is rotatably connected to the first bearing seat, which can ensure the stability and reliability of the first shredding roller during the rotation process and ensure that the material is shredded.

[0014] Preferably, a second drive motor is provided on one side of the shredding box, and a second shredding roller is rotatably connected to the output end of the second drive motor and located inside the shredding box. A second bearing seat is provided on one side of the shredding box, and the other end of the second shredding roller is rotatably connected to the second bearing seat. The shredding teeth of the second shredding roller and the first shredding roller are arranged in an alternating pattern.

[0015] By adopting the above technical solution, the second shredding roller is driven to rotate by the second drive motor. When the material passes between the two shredding rollers, the material can be effectively torn and broken by the meshing action of the shredding teeth of the two shredding rollers, thereby achieving the expected shredding effect.

[0016] Preferably, the shredder has a sliding groove on its side end face, and an adjustment mechanism is provided on one side of the shredder;

[0017] The adjustment mechanism includes a first fixed frame welded to the upper end face of the frame, a third drive motor is bolted to one side of the first fixed frame, and a threaded shaft is rotatably connected to the output end of the third drive motor and located in the middle of the first fixed frame.

[0018] By adopting the above technical solution, the threaded shaft can be rotated by a third drive motor, and the threaded shaft can be used as a driving force to achieve adjustment, thereby adjusting the shredding effect, adapting to different materials, or improving work efficiency.

[0019] Preferably, the outer surface of the threaded shaft is threadedly connected to a first support rod, the bottom end of the first support rod is in close sliding connection with the first fixed frame, and the top end of the first support rod is fixedly connected to the second drive motor.

[0020] By adopting the above technical solution, the rotation of the threaded shaft can drive the first support rod connected to the thread on its outer surface to move. The first support rod can drive the second shredding group, which is fixedly connected to its top, to move along the middle of the slide groove. This allows the distance between the second shredding group and the first shredding group to be adjusted so as to adjust different shredding effects according to the needs, thereby achieving the shredding requirements.

[0021] Preferably, a second fixing frame is welded to the other side of the frame, a limiting shaft is fixed in the middle of the second fixing frame, a second support rod is slidably connected to the outer surface of the limiting shaft, and the second support rod is fixedly connected to the second bearing seat. A hopper is fixed to the bottom of the frame.

[0022] By adopting the above technical solution, by setting a limiting shaft on one side of the frame and fixing it to the second bearing seat at the other end of the second shredding group through the second support rod, the movement of the second shredding group can be made stable and accurate, thereby improving the shredding precision.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. By adding five sets of material-dispersing plates in the middle of the feed hopper and driving the five sets of material-dispersing plates to rotate by a geared motor, the input material can be effectively dispersed, so that the material can enter the shredding box evenly during the shredding process. This avoids the accumulation or blockage of material when there is too much material and it cannot be discharged in time, thus ensuring the smooth progress of the shredding process. This not only improves the shredding efficiency, but also protects the internal parts of the shredder from damage and extends the service life of the shredder.

[0025] 2. The threaded shaft in the middle of the first fixed frame is driven to rotate by the third drive motor. The threaded shaft drives the first support rod to move horizontally along the middle of the first fixed frame, so that the second shredding group, which is fixedly connected to the top of the first support rod, moves horizontally along the middle of the chute. In conjunction with the sliding connection between the second support rod and the limiting shaft on the other side of the shredding box, the second shredding group is limited during its movement, ensuring its stability and accuracy. This allows the distance between the second shredding group and the first shredding group to be adjusted. The shredding size can be controlled and adjusted according to the shredding requirements of the material. In addition, the distance between the first and second shredding rollers can be adjusted without affecting the rotation of the second shredding roller, so as to meet the shredding requirements of different materials, improve efficiency, and enhance processing results. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view;

[0027] Figure 2 This is a side view of the main body structure of this utility model;

[0028] Figure 3 This is a top view of the main structure of the present invention;

[0029] Figure 4 This is a schematic cross-sectional view of the main body of this utility model.

[0030] In the diagram: 1. Frame; 2. Shredding box; 3. First drive motor; 4. First shredding roller; 5. First bearing seat; 6. Second drive motor; 7. Second shredding roller; 8. Second bearing seat; 9. Slide groove; 10. First fixed frame; 11. Third drive motor; 12. Threaded shaft; 13. First support rod; 14. Second fixed frame; 15. Limiting shaft; 16. Second support rod; 17. Feed hopper; 18. Gear motor; 19. Rotating shaft; 20. Feeding plate; 21. Third bearing seat; 22. Discharge hopper. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] To address the problem in existing technologies where material slowly passes between two sets of shredding rollers, leading to accumulation when there is excessive material, the following solution is disclosed. Please refer to [link / reference]. Figures 1-4This utility model provides a technical solution: a shredding device for a dual-shaft shredder, including a frame 1 and a shredding box 2; the shredding box 2 is welded above the frame 1, and a feed hopper 17 is welded above the shredding box 2; a feeding mechanism is provided in the middle of the feed hopper 17; the feeding mechanism includes a reduction motor 18 bolted to one side of the feed hopper 17, a rotating shaft 19 rotatably connected to the output end of the reduction motor 18 and located inside the feed hopper 17, a feeding plate 20 fixed to the outer surface of the rotating shaft 19, and five sets of feeding plates 20 evenly distributed along the outer surface of the rotating shaft 19; a third bearing seat 21 is bolted to the other side of the feed hopper 17, and the other end of the rotating shaft 19 is rotatably connected to the third bearing seat 21.

[0033] After the material is fed into the feed hopper 17, the rotating shaft 19 is driven to rotate by the geared motor 18. The rotating shaft 19 drives the five sets of material-dispersing plates 20 to rotate in the middle of the feed hopper 17. The rotation of the material-dispersing plates 20 can effectively disperse the material. The other end of the rotating shaft 19 is rotatably connected to the third bearing seat 21, which makes the rotation of the rotating shaft 19 more stable. The design of five sets of material-dispersing plates 20 can ensure that the material can enter the shredding box 2 evenly during the shredding process, avoiding the accumulation or blockage of material when there is too much material and it cannot be discharged in time. This ensures the smooth progress of the shredding process, not only improving the shredding efficiency, but also protecting the internal parts of the shredder from damage and extending the service life of the shredder.

[0034] A first drive motor 3 is bolted to one side of the shredding box 2. A first shredding roller 4 is rotatably connected to the output end of the first drive motor 3 inside the shredding box 2. A first bearing seat 5 is bolted to one side of the shredding box 2, and the other end of the first shredding roller 4 is rotatably connected to the first bearing seat 5. A second drive motor 6 is provided on one side of the shredding box 2. A second shredding roller 7 is rotatably connected to the output end of the second drive motor 6 inside the shredding box 2. A second bearing seat 8 is provided on one side of the shredding box 2, and the other end of the second shredding roller 7 is rotatably connected to the second bearing seat 8. The shredding teeth of the second shredding roller 7 and the first shredding roller 4 are arranged in an alternating pattern.

[0035] The first drive motor 3 drives the first shredding roller 4 to rotate, and the second drive motor 6 drives the second shredding roller 7 to rotate. The first shredding roller 4 and the second shredding roller 7 are arranged alternately to form a better biting and shearing effect during the shredding process. The first shredding roller 4 and the second shredding roller 7 are rotatably connected to the first bearing seat 5 and the second bearing seat 8, which not only ensures the stability of the shredding rollers during rotation, but also enables precise control of the shearing accuracy between the shredding rollers, so as to meet the shredding requirements of different materials during the shredding process and enhance the shredding effect.

[0036] The shredder 2 has a sliding groove 9 on its side end face, and an adjustment mechanism is provided on one side of the shredder 2. The adjustment mechanism includes a first fixed frame 10 welded to the upper end face of the frame 1. A third drive motor 11 is bolted to one side of the first fixed frame 10. A threaded shaft 12 is rotatably connected to the output end of the third drive motor 11 and located in the middle of the first fixed frame 10. A first support rod 13 is threaded to the outer surface of the threaded shaft 12. The bottom end of the first support rod 13 is in close sliding connection with the first fixed frame 10, and the top end of the first support rod 13 is fixedly connected to the second drive motor 6. A second fixed frame 14 is welded to the other side of the frame 1. A limit shaft 15 is fixed in the middle of the second fixed frame 14. A second support rod 16 is slidably connected to the outer surface of the limit shaft 15, and the second support rod 16 is fixedly connected to the second bearing seat 8. A feeding hopper 22 is fixed to the bottom of the frame 1.

[0037] The third drive motor 11 drives the threaded shaft 12 in the middle of the first fixed frame 10 to rotate. The threaded shaft 12 drives the first support rod 13 to move horizontally along the middle of the first fixed frame 10, so that the second shredding group fixedly connected to the top of the first support rod 13 can move horizontally along the middle of the slide groove 9. In conjunction with the sliding connection between the second support rod 16 on the other side of the shredding box 2 and the limiting shaft 15, the second shredding group can be limited during its movement, ensuring its stability and accuracy during movement. The distance between the second shredding group and the first shredding group can be adjusted according to the material shredding requirements, and the distance between the first shredding roller 4 and the second shredding roller 7 can be adjusted without affecting the material shredding, so as to meet the shredding requirements of different materials, improve the efficiency of use, and enhance the processing effect.

[0038] Working Principle: For this type of shredding device used in a dual-shaft shredder, firstly, the material is fed into the feed hopper 17. After the reduction motor 18 starts, it drives the rotating shaft 19 to rotate inside the feed hopper 17. The five sets of evenly distributed material-dispersing plates 20 on the rotating shaft 19 rotate accordingly, effectively dispersing the material. This design ensures that the material does not accumulate or clog during feeding, but enters the shredding box 2 evenly, preparing for the subsequent shredding process. Next, the first drive motor 3 and the second drive motor 6 drive the first shredding roller 4 and the second shredding roller 7 to rotate inside the shredding box 2, respectively. Since the shredding teeth of the first shredding roller 4 and the second shredding roller 7 are arranged in an alternating pattern, they rotate during the process... This design creates better biting and shearing effects, enhancing the shredding effect and ensuring that the material is thoroughly shredded. The shredding device is also equipped with an adjustment mechanism to adjust the position of the second shredding roller 7. By adjusting the distance between the second shredding roller 7 and the first shredding roller 4, the shredding requirements can be flexibly adjusted to meet the shredding needs of different materials. Finally, the shredded material is discharged through the hopper 22 at the bottom of the frame 1. The entire shredding process is completed through the coordinated action of the feeding mechanism, the shredding roller, and the adjustment mechanism, ensuring high efficiency and stability in shredding. Furthermore, this shredding device has advantages such as compact structure, simple operation, and convenient maintenance, making it suitable for shredding various materials.

[0039] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shredding device for a double-shaft shredder, comprising a frame (1) and a shredding box (2), characterized in that: an upper portion of the frame (1) is welded with the shredding box (2), an upper portion of the shredding box (2) is welded with a feeding hopper (17), and a middle portion of the feeding hopper (17) is provided with a raking mechanism; the raking mechanism comprises a speed reducer motor (18) bolted on one side of the feeding hopper (17), an output end of the speed reducer motor (18) is rotationally connected with a rotating shaft (19) inside the feeding hopper (17), an outer surface of the rotating shaft (19) is fixed with a plurality of raking plates (20) which are evenly distributed along the outer surface of the rotating shaft (19), and the other side of the feeding hopper (17) is bolted with a third bearing seat (21), and the other end of the rotating shaft (19) is rotationally connected with the third bearing seat (21).

2. A shredding device for a dual shaft shredder according to claim 1, characterized in that: one side of the shredding box (2) is bolted with a first driving motor (3), an output end of the first driving motor (3) is rotationally connected with a first shredding roller (4) inside the shredding box (2), one side of the shredding box (2) is bolted with a first bearing seat (5), and the other end of the first shredding roller (4) is rotationally connected with the first bearing seat (5).

3. A shredding device for a dual shaft shredder according to claim 2, characterized in that: one side of the shredding box (2) is provided with a second driving motor (6), an output end of the second driving motor (6) is rotationally connected with a second shredding roller (7) inside the shredding box (2), one side of the shredding box (2) is provided with a second bearing seat (8), the other end of the second shredding roller (7) is rotationally connected with the second bearing seat (8), and the second shredding roller (7) and the first shredding roller (4) are staggered arranged.

4. A shredding device for a dual shaft shredder according to claim 3, characterized in that: a side end surface of the shredding box (2) is provided with an adjusting mechanism. the adjusting mechanism comprises a first fixed frame (10) welded on an upper end surface of the frame (1), one side of the first fixed frame (10) is bolted with a third driving motor (11), an output end of the third driving motor (11) is rotationally connected with a threaded shaft (12) in a middle portion of the first fixed frame (10).

5. A shredding device for a dual shaft shredder according to claim 4, characterized in that: an outer surface of the threaded shaft (12) is threadedly connected with a first supporting rod (13), a bottom end of the first supporting rod (13) is slidingly connected with the first fixed frame (10), and a top end of the first supporting rod (13) is fixedly connected with the second driving motor (6).

6. A shredding device for a dual shaft shredder as defined in claim 1, wherein: the other side of the frame (1) is welded with a second fixed frame (14), a middle portion of the second fixed frame (14) is fixed with a limiting shaft (15), an outer surface of the limiting shaft (15) is slidingly connected with a second supporting rod (16), and the second supporting rod (16) is fixedly connected with the second bearing seat (8), and a bottom portion of the frame (1) is fixed with a lower hopper (22).

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